Electric Eddy and the Wasted Light
Experiment with a working light circuit
How a battery, light and switch circuit operates
Learn the science behind how a simple battery, light and switch electrical circuit works.
Copyright 2015 BTL Group Ltd and I R Gomersall (1992-1998)
Classroom Activities to learn more about energy saving
Ask the chilldren to count how many rooms have lights on in their house.
Ask them to count how many rooms have people in.
Work out the percentage of electricity that is not being wasted as it is not required.
If their parent's bill isÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒâ€ ÃÆ'¢â‚¬â„¢ÃÆ'ƒÆ’ÃÆ'¢â‚¬Â ÃÆ'ƒÂ¢ÃÆ'¢â€šÂ¬ÃÆ'¢â€žÂ¢ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒÂ¢ÃÆ'¢â€šÂ¬ÃÆ'‚ ÃÆ'ƒÆ’ÃÆ'‚¢ÃÆ'ƒÂ¢ÃÆ'¢â‚¬Å¡ÃÆ'‚¬ÃÆ'ƒÂ¢ÃÆ'¢â‚¬Å¾ÃÆ'‚¢ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒâ€ ÃÆ'¢â‚¬â„¢ÃÆ'ƒÆ’ÃÆ'‚¢ÃÆ'ƒÂ¢ÃÆ'¢â‚¬Å¡ÃÆ'‚¬ÃÆ'ƒâ€¦ÃÆ'‚¡ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒÂ¢ÃÆ'¢â€šÂ¬ÃÆ'…¡ÃÆ'ƒÆ’ÃÆ'¢â‚¬Å¡ÃÆ'ƒâ€šÃÆ'‚¢ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒâ€ ÃÆ'¢â‚¬â„¢ÃÆ'ƒÆ’ÃÆ'¢â‚¬Â ÃÆ'ƒÂ¢ÃÆ'¢â€šÂ¬ÃÆ'¢â€žÂ¢ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒÂ¢ÃÆ'¢â€šÂ¬ÃÆ'…¡ÃÆ'ƒÆ’ÃÆ'¢â‚¬Å¡ÃÆ'ƒâ€šÃÆ'‚¢ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒâ€ ÃÆ'¢â‚¬â„¢ÃÆ'ƒÆ’ÃÆ'¢â‚¬Å¡ÃÆ'ƒâ€šÃÆ'‚¢ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒâ€šÃÆ'‚¢ÃÆ'ƒÆ’ÃÆ'‚¢ÃÆ'ƒÂ¢ÃÆ'¢â‚¬Å¡ÃÆ'‚¬ÃÆ'ƒâ€¦ÃÆ'‚¡ÃÆ'ƒÆ’ÃÆ'¢â‚¬Å¡ÃÆ'ƒâ€šÃÆ'‚¬ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒÂ¢ÃÆ'¢â€šÂ¬ÃÆ'‚¦ÃÆ'ƒÆ’ÃÆ'¢â‚¬Å¡ÃÆ'ƒâ€šÃÆ'‚¡ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒâ€ ÃÆ'¢â‚¬â„¢ÃÆ'ƒÆ’ÃÆ'‚¢ÃÆ'ƒÂ¢ÃÆ'¢â‚¬Å¡ÃÆ'‚¬ÃÆ'ƒâ€¦ÃÆ'‚¡ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒÂ¢ÃÆ'¢â€šÂ¬ÃÆ'…¡ÃÆ'ƒÆ’ÃÆ'¢â‚¬Å¡ÃÆ'ƒâ€šÃÆ'‚¬ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒâ€ ÃÆ'¢â‚¬â„¢ÃÆ'ƒÆ’ÃÆ'¢â‚¬Â ÃÆ'ƒÂ¢ÃÆ'¢â€šÂ¬ÃÆ'¢â€žÂ¢ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒâ€šÃÆ'‚¢ÃÆ'ƒÆ’ÃÆ'‚¢ÃÆ'ƒÂ¢ÃÆ'¢â€šÂ¬ÃÆ'…¡ÃÆ'ƒâ€šÃÆ'‚¬ÃÆ'ƒÆ’ÃÆ'¢â‚¬Å¡ÃÆ'ƒâ€šÃÆ'‚¦ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒâ€ ÃÆ'¢â‚¬â„¢ÃÆ'ƒÆ’ÃÆ'‚¢ÃÆ'ƒÂ¢ÃÆ'¢â‚¬Å¡ÃÆ'‚¬ÃÆ'ƒâ€¦ÃÆ'‚¡ÃÆ'ƒÆ’ÃÆ'†â€™ÃÆ'ƒÂ¢ÃÆ'¢â€šÂ¬ÃÆ'…¡ÃÆ'ƒÆ’ÃÆ'¢â‚¬Å¡ÃÆ'ƒâ€šÃÆ'‚¡ 100 ask them how much money it would save if the same percentage of energy was saved.
Suggest that if they turn the lights off and save their parents that much money, they could ask them for part of the saving as increased pocket money.
A tricky question for your teacher
If we get a short circuit, can you lengthen it for me Sir.